Dokumente Fakultät für Biologie und Psychologie (inkl. GAUSS) nach Gutachter "Fischer, Julia Prof. Dr."
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Optimization of experimental procedures for the assessment of auditory cognition in non human primates
(2024-02-23)In a loose sense, the exceptional development of technology in the past three decades has allowed researchers to drastically improve the quality and quantity of behavioral data. However, the methodological advances achieved ... -
Determinants of vocal usage in the genus Chlorocebus
(2023-08-04)The vocal communication of non-human primates has been the center of extensive research efforts that aimed to advance our understanding of the evolution of vocal communication and human speech. The alarm call system of the ... -
The Development of Recursive Meta-Representational Theory of Mind
(2023-06-02)Domain-general theories of Theory of Mind development assume that the ability to understand mental states (representations) as such is based on a fundamental understanding of representa-tions as representations ... -
Social information sampling and decision-making: An evolutionary and ontogenetic perspective
(2023-05-16)An advantage of being a group-living-, as opposed to a solitary-species, is having the opportunity to engage with conspecifics in mutually beneficial cooperative activities. Choice of cooperation partner often decides ... -
Regulation of inter-sexual relationships within the microcosm of Guinea baboon units
(2023-03-03)Male reproductive success is linked in most animals to their access to fertile females. Resulting competition among males presents a strong selective pressure on male reproductive strategies. In species with female choice ... -
Mother-infant relationships in wild Guinea baboons (Papio papio)
(2023-02-16)During infancy, primates are heavily dependent on their mothers for nursing, transport, and thermoregulation, but also benefit from associating with their mothers for protection and social support. Furthermore, the mother ... -
Kommunikation in Echtzeit - die Einflüsse von kindgerichteter Sprache und kindlicher Aufmerksamkeit auf den Spracherwerb
(2021-09-23)In order to segment, understand and ultimately produce words from the flow of language, a series of learning processes are required. These processes are promoted by various extrinsic factors and intrinsic biases. This ... -
Measuring communicative complexity across modalities: a new framework in the context of the “social complexity hypothesis” and its application in true lemurs
(2021-03-25)Animals exhibit an astonishing diversity of communicative systems, with substantial variation in both the nature and the number of signals they produce. Variation in communicative complexity has been conceptually and ... -
Determinants of cognitive performance and social preferences across age in Barbary macaques (Macaca sylvanus)
(2021-02-11)Aging is a universal process that occurs in almost all organisms and is defined as a progressive decrease in physiological functioning. For centuries, researchers have been interested in aging processes and their consequences. ... -
Kinship and sociality in wild Assamese macaques (Macaca assamensis): are they related?
(2020-12-04)Social bonds are found in social species spanning the entire mammalian kingdom. The formation of such bonds can be adaptive: strong links have been established between social integration and increased survival and/or ... -
Mating systems and infant care of cooperatively breeding black-fronted tamarins (Leontocebus nigrifrons)
(2020-04-21)In animal societies, individual fitness partly depends on a decision on whether or not to provide parental care, and the number of mating partners. The later defines a social mating system, whereas consequences of copulations, ... -
Dynamics and fitness benefits of male-male sociality in wild Guinea baboons (Papio papio)
(2020-03-06)Males living in multi-male groups display a wide range of relationships with co-resident males, varying from high levels of competition, intolerance and avoidance to cooperation, affiliation and social bonds. Despite the ... -
Leaving a solitary life behind: Evolutionary processes leading to sociality in animals
(2020-02-25)The evolution of stable animal groups is a major transition in evolution entailing changes in population structure and emerging properties due to the selective pressures associated with social interactions. Sociality is ... -
Group coordination during collective movements in Guinea baboons (Papio papio)
(2019-11-08)Despite potentially diverging interests, members of social groups coordinate to maintain group cohesion. The mechanisms and processes of group coordination are modulated by species- and context-specific factors. The genus ... -
Grunt usage and social monitoring: Investigation of the signaller and the receiver perspectives in a tolerant species of baboons
(2019-07-11)Understanding society, communication and cognition in non-human primates sheds light on the evolution of our own species. While the acoustic structure in primates is mainly innate, their vocal usage and comprehension/response ... -
The evolutionary roots of intuitive statistics
(2018-12-04)Intuitive statistical reasoning is the capacity to draw intuitive probabilistic inferences based on an understanding of the relations between populations, sampling processes and resulting samples. This capacity is fundamental ... -
Roots of Primate Cognition. The Primate Cognition Test Battery applied to three species of lemurs (Varecia variegata, Lemur catta and Microcebus murinus).
(2018-05-16)Compared to other mammals, primates have evolved relatively large brains and outstanding cognitive skills. Given that brain tissue is energetically very costly, one major evolutionary question concerns possible selection ... -
Aging and its impact on sociality in Barbary macaques (Macaca sylvanus)
(2018-04-13)With the aging of the human population, studies on the causes and consequences and, particularly, age-associated diseases, are attracting substantial attention. But how does aging affect peoples’ motivation to engage with ... -
Vocal repertoires of two matrilineal social whale species Long-finned Pilot whales (Globicephala melas) & Killer whales (Orcinus orca) in northern Norway
(2017-05-10)The aim of this study was to describe and investigate the vocal repertoire and possible factors influencing the size and composition of two matrilineal social whale species: long-finned pilot whales and killer whales in ... -
Male social relationships among wild Assamese macaques (Macaca assamensis)
(2016-11-08)General socioecological theories predict that in multi-male multi-female mammalian groups, males and females compete over resources of different nature. While females mainly compete over generally sharable food, males ...